Bobby pin spreading device



Dec. 25, 1951 R. K. WEAVER 2,579,990

BOBBY PIN SPREADING DEVICE Filed May 15, 1948 5 Sheets-Sheet 1 157/672 207? fail? ff. ZJea #27" Dec. 25, 1951 R. K. WEAVER BOBBY PIN SPREADING DEVICE Filed May 15, 1948 5 Sheets-Sheet 2 Dec. 25, 1951 R. K. WEAVER' 2,579,990

BOBBY PIN SPREADING DEVICE Filed May 15, 1948 5 Sheets-Sheet 4 jaw Dec. 25, 1951 i R. K. WEAVER 2,579,990

BOBBY PIN SPREADING DEVICE Filed May 15, 1948 5 Sheets-Sheet 5 ,f7? Z/ezz i0 7": 522% wa r Patented Dec. 25, 1951 vRonni-P1151iSPREADI NG. DEVICE Ruth K. Weaver, Chicago, 111.,assignm:1150., Gray-v 'lord. Products, Ihcorporateifihicagcn 111., a-core v poration of Illinois Application May 15, 1948, Serial No. 27,352

9; Claims. (e1. Zea-2 35,): v

invention relates to'improvemen'ts. in a bobby pin opening device, and is more particu- I'a-rly concerned with the provision of a device of this type adapted for use in transferring bobby pinsfronr a notched rod onto an oven wire. After bobby;pins have been formed from wire, they must be temperedand finished. To facilitate the tempering and finishing operations, the bobby pins are arranged in spaced parallel relation upon a suitable wire, referred to as an'oven wire. It is an object of the present invention to provide a relatively" simpledevice adapted for use inmounting bobby pins upon oven wires forsubsequent manufacturing operations, such as tempering,

japanning, varnishing, drying, etc.

This invention further contemplates the provisionof-a device adapted foruse in simultaneously opening a relatively large group of bobby pins arranged in spaced parallel relation along a notched rod, and for inserting an oven wire betweenthe legs of the group of bobby pins. The notched rod is then removed and the legs of the hobby pin are permitted to move into clamping engagement upon the oven wire. I 'Thisinvention further contemplates the pro- Fig. 3 is a longitudinal sectional view taken alongv the line 33 of Fig. 2.

Fig. 4 is a transverse sectional view takenalong the line 4-4'of Fig. 2.

Fig. 5 is a. fragmentary transverse sectional view, corresponding to Fig. 4,'sh owin g the posithe legs of a group of bobby pins.

Fig. 6 is a detail plan view illustrating a group of bobby pins mounted upon-an oven wire.

Fig. 7 is a detail sectional view taken along theline '1-1-ofFig. 6.

Fig. 8 is a detail plan-view illustrating a group "of bobbv'pins as arrangedin spaced parallel relation along a notched rod or bar priorto trans- "fer of the bobby pins ontoan oven-wire.

Referring now to the drawings for a better tion of parts at the termination of the operation )of' positioning :an oven wire between 2. understanding of this invention. the; hobbypin spreading device. isv shown as. comprising a pair of sideg frame .members 661 secured. in spaced parallel. relation by'a cross, plate, 1 and a top plate 8. The. side members and. transverse members, forming the .frame: 9 of, the bobby pin spreading device, are; adapted. to be supported upon asuitablework table ll v A- pair of arms. IL-s12 have their inner ends secured to theirzrespective framemembers. 6-B and their outer ends projecting toward the opera-tor to receive and support. the ends of a notched rod. t3. A. pluralitypf -.bobbyjpins. I'll are-mounted on. the. .:no tched rod t3 and are moved; into. spaced parallel relation within their respective notches 1.6 by :means of a. ring I! mounted upon, the .thumbofthe operator. After the. bobby-pins 1.4 :are equally spacedalong the notched rod .13, 17118. I0d"311d bobby pins are mounted upon the forward'end of the top plate 8, as illustrated in Fig. 4 of the drawings. It will be: noted that; the loop endaof'the bobby pins it are disposedagainst an abutment flange .l8 providedaon'theiorward edge. of the, top plate :8, and 'thattheiuncrimped Iegs of the bobby pins have. their free ends engaged against an abut- .ment wall; 9: formed on the top: plate 8, the abutmentiwalll 9 being; of. a depth equal to the, thick- ;ness 'ofthe free filldSgOf. the bobby pins.

A :push plate 2! guided for .reciprocable movement along the upper surface: of the top plate fa by; means of guide blocks 22-22 disposed in slots"2 3-2-3 formed in the top plate.

means of cap, screws 24". A. hearing rod-24 is securedin apertures 26-26 formed, in the-guide blocks 122-42 and hascits :ends engaged by tension springs 21-21 leading to posts 28'28' provided onfarms;129- 2.9 mounted :on the toppl'ate 8.. Thetension'. springs. '2 'l-21 act to yieldably resist'torwardmovement. of the push plate 2- I- relative tothetop: plate8..

:A- pair ofnonnecting links. 3'l-.-3 l are Journaled cured to :the, crossrpl-ate '1. A foot pedal 3! is mounted on onerendof an arm 38 which has its :othenendndjustablysecured by means of cap .mrewszaartozthelowerzenckof'the reverse. atenspring Atlhasiimzonerendmonmcted :to apin 42 provided on the cross plate 1, and i ssqther end secured to a. bracket 43 provided on the lever ing, etc.

33. The tension spring 4| serves to yieldably resist pivotal movement of the lever 33 in a clockwise direction, as illustrated in Fig. 1.

A lifting plate 46 is secured to a cross shaft 41 journaled at its ends in bearing blocks 48-48. The bearing blocks 48-48 are guided for common reciprocable movement along the upper surface of the top plate 8 by means of guide bars 49-49 disposed in recesses |-5| formed in the guide blocks. Each guide bar 49 is secured in spaced parallel relation to the top plate 8 by means of spacing blocks 52 and 53 and bolts 54. Each bearing block 48 and its respective spacing block 52 is formed with opposing recesses at 56 and 51, respectively, to receive the ends of a compression spring 58 which acts to yieldably resist movement of its respective bearing block 48 toward its spacingblock 52. One end of a tension spring 6| is secured at 62 to a bearing block 48, the opposite endof the spring being secured to an arm 63 provided on the cross shaft 41. The tension spring 6| acts to yieldably resist counterclockwise movement of the shaft 41, as viewed in Figs. 1, 4, and 5. Each bearing block 48 is also provided with a catch arm 64 to be engaged by a pin 66 provided on the push plate-2|. During the rearward movement of the pushplate 2|, it will be noted that the pins 66-66 engage their respective arms 64-64 to move the bearing blocks 48-48 rearwardly against the action of the compression springs 58-58. In transferring a group of bobby pins l4 from the notched rod |3 to an oven wire H, the transverse portion |2 of the oven wire is positioned against the forward edge of the push plate 2| with the side arms 13 of the oven wire disposed under a pair of flat resilient springs 14-14. The

transverse portion 12 of the oven wire is held in position against the forward edge of the push plate 2| by means of the lifting plate 46, as illustrated in Fig. 4.

The push plate 2| is moved in a forward direction by manual pressure exerted by the operator against the foot pedal 31 which causes the lever 33 to act through the connectinglinks 3|-3|, bearing rod 24, and guide blocks 22-22. During forward movement of the push plate 2|, the lifting plate 46 maintains its position relative to i the push plate to cause its bevelled forward edge 18 to engage between the legs of the bobby pins |4. Further forward movement of the push plate 2| causes the lifting plate 46 to'move the crimped legs of the bobby pins away from the uncrimped legs and permits the forward edge of the push plate to insert the transverse portion 12 of the oven wire H between the legs of the bobby pins, as illustrated in Fig. 5.

When the operator releases the foot pedals 31, the tension springsZ'l and 4| act to move the push plate 2| toward its rearward position. As the push plate 2| travels rearwardly, the pins 66-66 act through their respective arms 64-64 to move the bearing blocks 48-48 rear- While this invention has been shown in but one form, it is obvious to those skilled in the art that it is not so limited but is susceptible of various changes and modifications without departing from the spirit and scope of the claimed invention.

I claim as my invention:

1. In a device for mounting a group of bobby pins upon an oven wire, a supportingplate, a rod formed with notches at spaced intervals to position a group of bobby pins in spaced parallel relation upon said plate, a lifting plate wardly against the action of the compression springs 58-58. After withdrawal of the notched bar l3, the group of bobby pins I4 is mounted in spaced parallel relation upon the oven wire 1| in the manner illustrated in Figs. 6 and '7 in the drawings. The oven wire with its bobby pins mounted thereon is then delivered to other departments for subsequent finishing operations, such as tempering, japanning, varnishing, cardmounted above said supporting plate, a pusher plate mounted for reciprocable movement along the upper surface of said supporting plate to coact with said lifting plate to spread the legs of a group of bobby pins and to insert an oven wire therebetween, and means to actuate said lifting plate and pusher plate.

2. In a device for mounting a group of bobby pins upon an oven wire, a supporting plate, a

.rod formed with notches at spaced intervals to position a group of bobby pins in spaced parallel relation upon said plate, a lifting plate mounted above said supporting plate, a pusher plate mounted for reciprocable movement along the upper surface of said supporting plate to coact with said lifting plate to spread the legs of a group of bobby pins and to insert an oven wire therebetween, and means to reciprocate said pusher plate.

3. In a device for mounting a group of bobby pins upon an oven wire, a supporting plate, a rod formed with notches at spaced intervals to position a group of bobby pins in spaced parallel relation upon said plate, a lifting plate mounted above said supporting plate, a pusher plate mounted for reciprocable movement along the upper surface of said supporting plate to coact with said lifting plate to spread the legs of said group of bobby pins and to insert an oven wire therebetween, means to reciprocate said pusher plate, resilient means acting to urge said lifting plate forward into engagement between the legs of a group of bobby pins, and means operable responsive to rearward movement of said pusher plate to move said lifting plate rearwardly to its inoperative position.

4. In a device for mounting a group of bobby pins upon an oven wire, a supporting plate, a rod formed with notches at spaced intervals to said group of bobby pins.

5. In a device for mounting a group of bobby pins upon an oven wire, a supporting plate, a rod formed with notches at spaced intervals to arrange a group of bobby pins in spaced parallel relation upon said supporting plate, a pusher plate guided for reciprocable movement along said supporting plate to insert an oven wire be-- tween the legs of said group of bobby pins, a lifting plate disposed above said pusher plate to coact with the latter in opening the legs of said group of bobby pins, and a pair of bearing blocks guided for common reciprocable movement along said supporting plate, said lifting plate being secured to a shaft journaled at its ends in said bearin blocks.

6. Ina device for mounting a group of bobbv pins upon an oven wire, a supporting plate, a rod formed with notches at spaced intervals to arrange a group of bobby pins in spaced parallel relation upon said supporting plate, a pusher plate guided for reciprocable movement along said supporting plate to insert an oven wire between the legs of said group of bobby pins, a lifting plate disposed above said pusher plate to coact with the latter in opening the legs of said group of bobby pins, a pair of bearing blocks uided for common reciprocable movement along said supporting plate, said lifting plate being secured to a shaft journaled at its ends in said bearing blocks, and means operable responsive to reciprocable movement of said pusher plate to reciprocate said bearing blocks.

7. In a device for mounting a group of bobby pins upon an oven wire, a supporting plate, a rod formed with notches at spaced intervals to arrange a group of bobby pins in spaced parallel relation upon said supporting plate, a pusher plate guided for reciprocable movement along said suporting plate to insert an oven wire between the legs of said group of bobby pins, a lifting plate disposed above said pusher plate to coact with the latter in opening the legs of said group of bobby pins, a pair of bearing blocks guided for common reciprocable movement along said supporting plate, said lifting plate being secured to a shaft journaled at its ends in said bearing blocks, means operable responsive to reciprocable movement of said pusher plate to reciprocate said bearing blocks, and means to limit the forward travel of said bearing blocks.

8. In a device for mounting a group of bobby pins upon an oven wire, a supporting plate, a rod formed with notches at spaced intervals to arrange a group of bobby pins in spaced parallel relation upon said supporting plate, a pusher plate guided for reciprocable movement along said supporting plate to insert an oven wire between the legs of said group of bobby pins, a lifting plate disposed above said pusher plate to coact with the latter in opening the legs of said group of bobby pins, a pair of bearing blocks guided for common reciprocable movement along said supporting plate, said lifting plate being secured to a shaft journaled at its ends in said bearing blocks, means operable responsive to reciprocable movement of said pusher plate to reciprocate said bearing blocks, means to limit the forward travel of said bearing blocks, and means to hold said bearing blocks in their forward position during subsequent forward movement of said pusher plate.

9. In a device for mounting a group of bobby pins upon an oven wire, a supporting plate, a rod formed with notches at spaced intervals to arrange a group of bobby pins in spaced parallel relation upon said supporting plate, a pusher plate guided for reciprocable movement along said supporting plate to insert an oven wire between the legs of said group of bobby pins, a lifting plate disposed above said pusher plate to coact with the latter in opening the legs of said group of bobby pins, a pair of bearing blocks guided for common reciprocable movement along said supporting plate, said lifting plate being secured to a shaft journaled at its ends in said bearing blocksgmeans operable responsive to reciprocable movement of said pusher plate to reciprocate said bearing blocks, means to limit the forward travel of said bearing blocks, and resilient means to hold said bearing blocks in their forward position during subsequent forward movement of said pusher plate.

RUTH K. WEAVER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,829,651 Henderson Oct. 27, 1931 2,158,168 Woodrufi May 16, 1939 2,198,740 Redman Apr. 30, 1940 2,432,339 Reynolds Dec. 9, 1947 2,457,766 Young Dec. 28, 1948 2,466,733 Norin Apr. 12, 1949 

